A stream diversion channel is a temporary practice to convey stream flow in an environmentally safe manner around or through a construction site while a permanent structure or conveyance is being installed in the stream channel.
For details please read this helpful design article. (http://www.thegeospatialgroup.com/pdf/Volume1/Chap4_Sections/4_7/V1_Chap4_7_Stream_Protect_Pract_SDC.pdf)
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Moreover, for Hydraulics and Hydrology Features "AutoCAD Civil 3D" is a widely used software which includes additional software applications that allow you to perform a variety of storm water management tasks, including storm sewer design, watershed analysis, detention pond modeling, and culvert, channel, and inlet analysis.
External applications can be used to add hydraulics and hydrology property information to AutoCAD Civil 3D pipe networks. It is also possible to add hydraulics and hydrology property information directly to AutoCAD Civil 3D pipe networks.